EP2430712A1 - Led night-light - Google Patents
Led night-lightInfo
- Publication number
- EP2430712A1 EP2430712A1 EP10775519A EP10775519A EP2430712A1 EP 2430712 A1 EP2430712 A1 EP 2430712A1 EP 10775519 A EP10775519 A EP 10775519A EP 10775519 A EP10775519 A EP 10775519A EP 2430712 A1 EP2430712 A1 EP 2430712A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- led
- light
- housing
- prongs
- emitting diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
- F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
- F21S8/035—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade by means of plugging into a wall outlet, e.g. night light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
- H01R24/68—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall mounted on directly pluggable apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49716—Converting
Definitions
- the present invention generally relates to an LED (light-emitting diode) night-light, and more specifically to an LED night-light assembly configured from a typical night-light assembly for an incandescent bulb.
- a typical night-light incandescent bulb includes of a glass envelope enclosing a filament.
- a plurality of support wires and connecting wires extend from the filament to an electrical contact.
- a screw cap is usually placed over the end of the glass envelope to facilitate connecting the bulb to a treaded socket of a housing for a standard night-light assembly.
- a typical housing 1 of the prior art contains a body 3 having a threaded opening 5 for engaging the screw cap and a contact 7 electrically connecting to an electrical contact on the screw cap.
- the housing used for LED's of the prior art are typically a different construction than those for standard light bulbs .
- the present invention allows for an LED to be used with a standard night-light assembly for an incandescent bulb, such as those having a threaded opening.
- an LED night-light generally comprises a housing having an interior surface defining a cylindrical opening.
- the interior surface has threads adapted to mate with a threaded end of a light bulb.
- an LED night- light generally comprises a housing having a cylindrical interior surface defining an opening, and an upper rim surface surrounding the opening and defining a plane at the opening.
- the interior surface has threads adapted to mate with a threaded end of a light bulb.
- the interior surface also has a groove.
- a disk is in the groove.
- First and second prongs are supported in parallel by the housing.
- the prongs have interior ends extending into an interior of the housing and have exterior ends extending out of the housing such that the exterior ends are configured for insertion into an electrical outlet.
- a light- emitting diode is mounted on the disk and electrically connected to the first prong.
- the light-emitting diode extends through the plane defined by the upper rim surface of the housing, wherein a majority of the light-emitting diode is disposed below the plane defined by the upper rim surface of the housing.
- a circuit board includes an LED driver circuit electrically connected to the LED. The driver circuit is configured for energizing the LED when the first and second prongs are plugged into an electrical outlet connected to a power source.
- a housing for an LED night-light generally comprises a front panel and a back panel connected to the front panel.
- the panels together define an upper portion and a lower portion of the housing.
- the upper portion comprises a cylindrical interior surface defining an opening.
- the interior surface has threads adapted to mate with a threaded end of a light bulb and a groove for positioning a light-emitting diode in the opening.
- Fig. 1 is a light assembly of the prior art
- FIG. 2 is a perspective view of an embodiment of an LED night-light of the present invention
- Fig. 3 is a perspective of the LED night-light with a cover removed
- Fig. 4 is an exploded view of the LED night-light
- Fig. 5 is a front view of the perspective of Fig. 3;
- FIG. 6 is a front view of a back panel of a housing of the present invention.
- Fig. 7 is a back view of a front panel of the housing of the present invention.
- Fig. 8 is a perspective of an LED, circuit board and prong of the present invention.
- Fig. 9 is a schematic of a circuit of the LED night- light
- an LED night-light assembly of the present invention is generally indicated at 10.
- the assembly includes a housing 12 having a front panel 14 and a back panel 16 connected to the front panel by a screw 18.
- An optional transparent cover 19 is secured to the housing 12.
- First and second parallel prongs 20, 22 are supported by the housing 12 and are received through slots 24 in the back panel 16.
- a printed circuit board (PCB) 26 is mounted on the first prong 20.
- a light-emitting diode (LED) 28 has a first lead wire 30 connected to the PCB 26 and a second lead wire 32 extending from the LED 28 and attached to a spring 34.
- a disk 36 seats the LED 28.
- a toggle switch 38 having a resilient extension 40 is mounted on the front panel 14. The toggle switch 38 is moveable for powering the assembly on and off when the prongs engage an electrical outlet connected to a power source.
- each panel 14, 16 of the housing 12 has an upper portion 42F, 42B and a lower portion 44F, 44B.
- An annular channel 41 extends around the housing 12 between the upper and lower portions 42, 44.
- the optional cover 19 has a U-shaped cutout 43 which slides into the channel 41 for attaching the cover to the housing 12. It will be understood that the cover 19 can be attached to the housing 12 in any suitable manner and other covers or no cover may be used, within the scope of the present invention.
- the upper portions 42F, 42B form a cylindrical housing for the LED 28.
- An opening 45 in the upper portion 42 of the housing 12 forms a rim 47 surrounding the opening and defining a plane P which is substantially horizontal when the night-light assembly 10 is vertical and engages a wall outlet.
- Threads 46 on an interior surface of the upper portion 42 are adapted to mate with a threaded end of a light bulb (not shown) .
- the housing 11 has a modular configuration such that the housing is adapted to separately receive a light bulb and an LED.
- the lower portion 44 of the housing 12 is more rectangular and houses, at least partially, the PCB 26, prongs 20, 22, spring 34, toggle switch 38 and extension 40 within an interior 53 of the housing.
- a bore 54F, 54B in the front and back panels 14, 16 receives the screw 18 by a threaded engagement for connecting the panels 14, 16.
- the back panel 16 has locating holes 50 configured to mate with locating pins 52 on the front panel 14 when the panels are connected.
- the back panel has a post 56 and a pair of sleeves 58 extending from an inner surface.
- the post 56 holds the extension 40 in place on the back panel 16.
- the sleeves 58 are sized and shaped to slideably receive interior ends 59 of the prongs 20, 22.
- the prongs When received in the sleeves 58, the prongs are supported in parallel by the housing 12.
- a catch 60 on the prongs 20, 22 prevents the prongs from sliding out the back of the back panel 16 once the prongs are inserted in the back panel 16.
- Exterior ends 61 of the prongs 20, 22 extend out of the housing 12 and are configured for insertion into an electrical outlet (not shown) connected to a power source.
- the front panel 14 has a pair of stops 62 formed in the front panel which prevent the prongs 20, 22 from being pushed and pulled with respect to the housing 12 when the panels are connected.
- the front panel 14 also has a window 64 and U-shaped supports 66 which receive the toggle switch 38. It is understood that the housing can have other configurations and still be within the scope of the present invention. For instance the housing could have other shapes or be formed from a single piece.
- the PCB 26 comprises a rigid substrate having an electrically conductive surface layer L.
- the PCB 26 along with the conductive surface layer is mounted onto the first prong 20 by solder S which electrically interconnects the prong 20 and the layer L.
- Electrically connected to the PCB 26 is an LED driver circuit 70 comprising a rectifier (diode) 72 and a resistor 74 configured for energizing the LED 28 when the prongs 20, 22 engage an outlet connected to a power source.
- the diode 72 and resister 74 are connected in series between the first prong 20 and the LED 28.
- the LED 28 is also electrically connected to the PCB 26, in series with the resistor 74, via the first connection wire 30.
- the diode 72, resistor 74 and LED 28 are standard electrical components well known to those of skill in the art.
- the disk 36 supports the LED and is received in a groove 48 in the interior surface of the housing 12 for positioning the LED 28 in the housing (see Fig. 5) .
- the groove 48 is located above the threads 46.
- One advantage of embodiments having the threads 46 and groove 48 is that molds used to make a typical night-light assembly for an incandescent bulb may be easily modified by adding the groove 48 for the disk 36 supporting the LED 28. Thus, a typical night-light assembly for an incandescent bulb may be easily converted to an LED night light. It is also contemplated that the disk may be configured to engage one of the grooves defined by the threads 46.
- the disk 36 positions the LED 28 such that a majority (e.g. at least 50% of the height) of the LED is located below the rim 47.
- the LED is shown as extending out of the upper portion 42 of the housing 12 and through the plane P so that only the dome of the LED is above plane P.
- the LED can be located at other positions.
- One advantage of embodiments of the invention in which a substantial portion of the LED 28 is positioned below the rim 47 is that the cylindrical housing formed by the upper portions 42F, 42B create a shroud which blocks and reflects at least some of the light emitted by the LED 28.
- the disk is circular, however, the disk can have other shapes such as square or triangular and still be within the scope of the present invention.
- the spring 34 connected to the second connection wire 32 is formed from a bent piece of sheet metal.
- the second connection wire 32 is electrically connected by solder S to the spring 34.
- the metal piece is bent to conform to the space in the interior 53 of the housing 12.
- a first spring portion 80 is positioned generally horizontally when the LED 28 is held in the housing 12.
- a second spring portion 82 extends from the first spring portion 80 generally vertically.
- a third spring portion 84 extends from the second spring portion 82 at an angle toward the center of the housing 12. The angle is sufficient to clear the second prong 22 such that a fourth spring portion 86 can extend from the third spring portion 84, generally vertically, between the second prong 22 and the extension 40.
- the spring 34 is moveable to electrically connect the LED 28 to the second prong 22. As will be described in greater detail below, the fourth portion 86 of the spring 34 is positioned to be engaged by the extension 40 on the toggle switch 38 for powering on and off the assembly 10.
- the toggle switch 38 includes a handle 90, a bar 92 at the base of the handle and a retaining knob 94 extending from the bar having a pair of shoulders 96 (only one is shown) .
- a projection 98 extends from the retaining knob 94 for attaching the switch 38 to the extension 40.
- the extension comprises a coil spring having a pair of open ends.
- the projection 98 inserts into one of the open ends of the extension 40 while the other open end of the extension fits around the post 56 on the back panel 16 of the housing 12.
- the extension 40 has a resting length such that when the panels 14, 16 are attached, the extension exerts a spring force on the toggle switch 38 holding the bar 92 in contact with the supports 66 allowing the toggle switch to pivot back and forth (e.g. left or right when the prongs engage a wall outlet) .
- the illustrated embodiment shows the toggle switch formed from one solid piece of electrically non-conductive material; however the toggle switch can comprise multiple components attached by any suitable manner. Moreover, other configurations of toggle switches and other types of switches are within the scope of the present invention.
- the toggle switch assembly comprises the toggle switch 38 and extension 40.
- the toggle switch 38 can be moved to a first position by toggling the switch to the left as shown in Fig. 5, labeled "ON". In this position, the extension 40 will engage the fourth portion 86 of the spring 34 causing the spring to contact the second prong 22. If the assembly 10 is connected to a power source, the spring 34 contacting the prong 22 will close the circuit, as shown by the switch in Fig. 9, energizing the driver circuit 70 and LED 28, powering on the LED.
- the toggle switch 38 can also be moved to a second position by toggling the switch to the right, in the position labeled "OFF". In this position, the extension 40 will release engagement with the fourth portion 86 of the spring 34 allowing the spring to move back to its resting position away from the second prong 22. This will open the circuit, de-energizing the driver circuit 70 and LED 28, powering off the LED.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/466,209 US8215820B2 (en) | 2009-05-14 | 2009-05-14 | LED night-light |
PCT/US2010/034665 WO2010132639A1 (en) | 2009-05-14 | 2010-05-13 | Led night-light |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2430712A1 true EP2430712A1 (en) | 2012-03-21 |
EP2430712A4 EP2430712A4 (en) | 2014-06-18 |
Family
ID=43068377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10775519.1A Withdrawn EP2430712A4 (en) | 2009-05-14 | 2010-05-13 | Led night-light |
Country Status (4)
Country | Link |
---|---|
US (5) | US8215820B2 (en) |
EP (1) | EP2430712A4 (en) |
CN (1) | CN102460857A (en) |
WO (1) | WO2010132639A1 (en) |
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US11098863B2 (en) * | 2004-10-01 | 2021-08-24 | Tseng-Lu Chien | Multiple functions LED night light |
US10487999B2 (en) * | 2007-05-31 | 2019-11-26 | Tseng-Lu Chien | Multiple functions LED night light |
US8215820B2 (en) | 2009-05-14 | 2012-07-10 | Mary Elle Fashions | LED night-light |
SG187611A1 (en) | 2010-07-27 | 2013-03-28 | Scentsy Inc | Scent warmers having non-incandescent heating and light-emitting devices and related methods |
JP2012074186A (en) * | 2010-09-28 | 2012-04-12 | Ichikoh Ind Ltd | Light source unit of semiconductor type light source of lamp fixture for vehicle and lamp fixture for vehicle |
US8772675B2 (en) | 2011-06-15 | 2014-07-08 | Scentsy, Inc. | Electrical lighting and heating modules, assemblies and scent warmers comprising such modules, and related methods |
US8878102B2 (en) * | 2011-06-15 | 2014-11-04 | Scentsy, Inc. | Base structures, scent warmers including such base structures, and related methods |
US9146025B2 (en) * | 2012-02-06 | 2015-09-29 | Mind Head Llc | LED lamp conversion module |
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USD958436S1 (en) * | 2020-05-21 | 2022-07-19 | Antares Iluminacion, S.A.U. | Lamp |
USD938075S1 (en) | 2020-07-09 | 2021-12-07 | Jasco Products Company LLC | Night light |
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-
2009
- 2009-05-14 US US12/466,209 patent/US8215820B2/en active Active
-
2010
- 2010-05-13 CN CN2010800264118A patent/CN102460857A/en active Pending
- 2010-05-13 EP EP10775519.1A patent/EP2430712A4/en not_active Withdrawn
- 2010-05-13 WO PCT/US2010/034665 patent/WO2010132639A1/en active Application Filing
-
2012
- 2012-07-09 US US13/544,365 patent/US8662733B2/en active Active
-
2013
- 2013-04-03 US US29/451,518 patent/USD751230S1/en active Active
-
2014
- 2014-02-14 US US14/180,765 patent/US9360179B2/en active Active
-
2015
- 2015-12-17 US US29/548,942 patent/USD808045S1/en active Active
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EP1353536A1 (en) * | 2002-03-28 | 2003-10-15 | All-Line Inc. | A LED bulb for night-light |
US20060007709A1 (en) * | 2004-07-06 | 2006-01-12 | Yuen Se K | LED sensor night light |
US20070253222A1 (en) * | 2006-04-27 | 2007-11-01 | Sdi Technologies, Inc. | Nightlight with rotatable image drum |
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Non-Patent Citations (1)
Title |
---|
See also references of WO2010132639A1 * |
Also Published As
Publication number | Publication date |
---|---|
US8662733B2 (en) | 2014-03-04 |
US8215820B2 (en) | 2012-07-10 |
US9360179B2 (en) | 2016-06-07 |
US20140160797A1 (en) | 2014-06-12 |
USD808045S1 (en) | 2018-01-16 |
US20120275194A1 (en) | 2012-11-01 |
US20100290254A1 (en) | 2010-11-18 |
EP2430712A4 (en) | 2014-06-18 |
USD751230S1 (en) | 2016-03-08 |
CN102460857A (en) | 2012-05-16 |
WO2010132639A1 (en) | 2010-11-18 |
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